Abraham pope



(No Model.)

A. POPE.

PRESSURE REGULATOR.

Patented Nov. 1,1881.

N. PETERS. PhcloLimogl-Jphcr. Washingwm D, C.

UNITED STATES PATENT OFFICE.

ABRAHAM POPE, OF SLOUGH, ASSIGN OR TO GORDON DONALDSON PETERS, OF LONDON, ENGLAND.

PRESSURE-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 249,088, dated November 1, 1881.

Application filed December 20, 1880.

To all whom it may concern:

Be it known that I, ABRAHAM PoPE, of Slough, England, engineer, have invented a new and useful Improvement in Pressure-Regulators for Gas, (for which I have obtained a patent in Great Britain, No. 3,730, hearing date September 13,1880,)of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to apparatus for regulating the supply and pressure of gas to the burners.

Figure l is a plan of the regulator with the cover removed, and Fig. 2 is a vertical central :5 section of the same.

My improved regulator is constructed in the form of a case or box,f, provided with an elastic diaphragm,f, and with a valve, g, for admitting the gas into the space below the said diaphragm. The said valve is forced toward its seat by levers h t' against the action of a spring, 9, which tends to retract the said valve. These levers are compound, as shownthat is to say, the lever h has its fulcrum h near the valve, and its short arm n bears on the said valve, while its long arm h extends to and works in a slot, 01, in the lever i, which is fulcrumed at 15* to the opposite side of the apparatus.

By means of these compound levers the valve may be worked with a much lighter pressure on the diaphragmf than has been heretofore practicable. I thereby prevent danger of the rupture of the said diaphragm. The 5 slotted lever is connected with a spiral spring,

j, placed in a direct line with the center of the diaphragmf. The tension ofthis spiral spring may be adjusted according to the pressure required in the regulator from the outside of the 40 latter. For this purpose I connect the lower end of the said spring'with a screw,j, which extends through a plate, j into a neck or socket, f which is closed externally by a screw-plug, j. The latter may be readily removed to per- (No model.) Patented in England September 13, 1880.

mit the insertion of a screw-driver to turn the said screw and thereby adjust the spring without permitting any gas to escape.

I do not broadly claim a pressure-regulator in which a horizontal diaphragm is connected with a system of vertically-swin gin g levers, the end of one of which acts upon a valve and is connected with a spring and a weight; nor do I broadly claim a spring connected with an adj ustin g-screw, as such features of themselves do not constitute myinvention. It should be observed that in my invention the spring attached to the ad justing-screw is centrally connected with the diaphragm by a direct connection, and, further, is arranged centrally with relation to the vertically-swinging levers, by which arrangement of parts a very rapid and prompt retraction of the diaphragm to its normal position is positively insured. It should also be observed that in my structure the two levers are directly connected by a slot-and-pin 6 connection, whereby the apparatus is simplified, the parts act quickly and promptly, and are rendered less complicated in construction.

What I claim is In a gas-pressure regulator, the combination, with the casef, provided with an interior horizontal diaphragm,f, of'the compound levers h and i, pivoted at their outer ends, and one provided with a pin entering a slot in the other, said levers being connected with the dia- 7 5 phragm and arranged to swing in a vertical plane, a valve, g, arranged beneath a part of the lever, h, which projects beyond its pivot, and a spring connected at one end with the lever *5 and centrally with the diaphragm, and at its other end with an adjusting device, the said members being organized in the described relation for operation as set forth.

ABRAHAM POPE.

Witnesses WILLIAM Uaoss, LEwIs SANDERsoN. 

